Blackwater, the ban was put in place during the Clinton administration for a period of 10 years. Part of the initial ban was that it would expire 10 years from the day it started in Sept 1994. Anything prior to this was pre-ban. During that ten years the manufacturers did everything they could to make weapons ban compliant. The ban expired in 2004. Anything built after that was post ban. They went back to having flash suppressors, bayonet lugs and 30 round mags, you know all those evil nasty things not allowed by the ban. The exception was a handful of states who passed their own laws keeping the ban in effect to this day, to include NY, NJ, CA and a couple others.